reading all cvs-files inside a folder and convert them into JSON

hi there!

I want to build a local ExtJS4-App and for that I need to read all cvs-files inside a folder and convert them into JSON. so the first problem would be: reading all files inside a folder.
but how could that be managed?

Quite the opposite, browsers have got tighter and tighter regarding this type of security. Access to the file-system is severely restricted. Even if you found a way to do it there's a good chance it would stop working in a future version of the browser. You'll need a server, I don't think you can get around that.